diff --git a/modules/gitea_instance/modules/repository/main.tf b/modules/gitea_instance/modules/repository/main.tf
index b714315..f0b6073 100644
--- a/modules/gitea_instance/modules/repository/main.tf
+++ b/modules/gitea_instance/modules/repository/main.tf
@@ -17,4 +17,9 @@ resource "gitea_repository" "this" {
   website                 = var.website
   autodetect_manual_merge = var.autodetect_manual_merge
   archive_on_destroy      = true
+
+  lifecycle {
+    # migration_mirror_interval defaults to "8h0m0s" but Gitea returns an empty MirrorInterval for non-mirror repos, so the read-back never matches and plans a spurious update every run; it is a migration-only knob with no drift to track here.
+    ignore_changes = [migration_mirror_interval]
+  }
 }